package com.itguigu.cart.controller;

import com.itguigu.cart.interceptor.CartInterceptor;
import com.itguigu.cart.service.CartService;
import com.itguigu.cart.to.UserInfoTo;
import com.itguigu.cart.vo.CartItem;
import com.itguigu.cart.vo.CartVo;
import com.itguigu.common.constant.AuthServerContant;
import com.itguigu.glimail.oauth.vo.MemberRespVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;

import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.concurrent.ExecutionException;


@Controller
public class CartController {
    @Autowired
    private CartService cartService;

    @GetMapping("/currentUserCartItems")
    @ResponseBody
    public List<CartItem> getCurrentUserCartItems() {
        return cartService.getCurrentUserCartItems();

    }

    /**
     * 浏览器有一个cookie :user-key  标识用户身份 一个月后过期
     * 如果第一次使用ja的购物车功能， 都会给一个临时的用户身份:
     * 浏览器以后保存，每次访问都会带上这个cookie;
     * 登录: session有
     * 没登录:按照cookie里面带来user-key来做。
     * 第一次:如果没有临时用户，帮忙创建一个临时用户。
     *
     * @return
     */
    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {
        //快速得到用户信息, id  user-key
//        UserInfoTo userInfoTo = CartInterceptor.threadLocal.get();
        CartVo cart = cartService.getCart();
        model.addAttribute("cart", cart);
        return "cartList";
    }

    /**
     * @param skuId
     * @param num
     * @param redirectAttributes addFlashAttribute(); 将数据放到session  ,可以再页面取出,但是只能取一次
     *                           addAttribute() 将数据放在url后面
     * @return
     * @throws ExecutionException
     * @throws InterruptedException
     */
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId,
                            @RequestParam("num") Integer num,
                            RedirectAttributes redirectAttributes) throws ExecutionException, InterruptedException {

        cartService.addToCart(skuId, num);
        redirectAttributes.addAttribute("skuId", skuId);
        return "redirect:http://cart.glimail.com/addToCartSuccess.html";
    }

    /**
     * 跳转到成功页面
     *
     * @param skuId
     * @param model
     * @return
     */
    @GetMapping("/addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId, Model model) {
        //重定向到成功页面  再次查询购物车即可
        CartItem cartItem = cartService.getCartItem(skuId);
        model.addAttribute("cartItem", cartItem);
        return "success";
    }

    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId") Long skuId, @RequestParam("check") Integer check) {
        cartService.checkItem(skuId, check);
        return "redirect:http://cart.glimail.com/cart.html";
    }

    @GetMapping("/countItem")
    public String numItem(@RequestParam("skuId") Long skuId, @RequestParam("num") Integer num) {
        cartService.countItem(skuId, num);
        return "redirect:http://cart.glimail.com/cart.html";
    }

    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId") Long skuId) {
        cartService.deleteItem(skuId);
        return "redirect:http://cart.glimail.com/cart.html";
    }
}

